Hi, Welcome to Health care magic forum.
You had marina I.U.D, removed, and immediately started taking orthonor pills, stopped after completion, and after one week had unprotected sex.
Though it is in safe period, nothing is predictable, and there is possibility of conception of 10%.
You can try medical termination of pregnancy
, under the supervision of a gynecologist, after a pregnancy test.
Take more of green leafy vegetables, pulses, sprouts,and
protein rich foods to prevent such abnormal cycles.
Wishing for a quick and complete recovery. Thank you.